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41	Earthworm populations found near Adelaide, and their influence on the fertility of the soil : thesis submitted for the Degree of Doctor of Philosophy Barley, K. P. January 1958 (has links) (PDF) Includes bibliographical references. Oligochaeta Soil biology Plant-soil relationships
42	Studies on suppressive soils in relation to the growth of Gaeumannomyces graminis var. tritici and other root pathogens of wheat Wildermuth, Graham Bert January 1977 (has links) ix, 223 leaves : ill., graphs, tables photos (part col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Pathology, 1979 Gaeumannomyces graminis. Wheat Diseases and pests. Plant-soil relationships
43	Spatial and temporal dynamics of arbuscular mycorrhizal fungi in high production corn systems Grigera, María Susana. January 1900 (has links) Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (site viewed on Feb. 6, 2007). PDF text: iii, 121 p. : ill. UMI publication number: AAT 3216344. Includes bibliographical references. Also available in microfilm and microfiche format.
44	Characterization of edaphic relationship of the Spicebush subcommunity Cartwright, Kelly L. 03 June 2011 (has links) The plant used in this study was the woodland shrub, Spicebush, Lindera benzoin (L.) Blume. Spicebush, is characteristically found on a poorly drained soil, within Beech-Maple or Mixed Mesophytic forests. It commonly occurs as pure stands in small patches within the shrub layer of mesophytic forests.The objective of this study was to characterize the soil type upon which Spicebush crows and to relate the soil-plant relationship in tears of establishment, growth, and development of the Spicebush. The variables used in accomplishing this objective were based on the physical and chemical regimes of Spicebush subcommunities. Ginn Woods, a climax beech-maple forest in Delaware County, Indiana, was used as a study area. Spicebush subcommunities within the woods were rapped and three representative sites were selected. The factors examined in the study were soil profile, soil moisture and temperature, soil and tissue levels of nitrate, phosphorus and the trace element metals Cr, Cu, Zn, Mn, Fe, Pb, Ni, and Cd. Analysis of the soil horizons was performed by soil core and visual characterization at the representative sites. Soil moisture blocks and temperature probes were buried at 5 centimeter and 20 centimeter depths at the sites for determination of soil temperature and available soil moisture. Data was collected at the sites every other day. Nitrate and phosphorus levels for plant tissue and soil were analyzed by the Kjeldahl Method and Spectrophotcznetric Method, respectively. An Atomic Absorption Spectrophotanetric Unit was used to determine amounts of ppm. of the metallic salts in samples of soil and leaf tissue.Ball State UniversityMuncie, IN 47306 Plant-soil relationships. Lindera benzoin. Ball State University. Thesis (M.S.)
45	From the foothills to the crest landscape history of the southern Manzano Mountains, central New Mexico, USA since 1800 / Huebner, Donald James. January 2002 (has links) (PDF) Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
46	High resolution map of the aluminum tolerance gene (Alt3) region in rye (Secale cereale L.) / Miftahudin, January 2002 (has links) Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves [100]-114). Also available on the Internet.
47	High resolution map of the aluminum tolerance gene (Alt3) region in rye (Secale cereale L.) Miftahudin, January 2002 (has links) Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves [100]-114). Also available on the Internet.
48	THE INFLUENCE OF SOIL TEMPERATURE ON THE SOLUBILITY AND AVAILABILITY OF PLANT NUTRIENTS Bullock, John Sumner, 1930- January 1963 (has links) No description available. Plant-soil relationships. Plants -- Effect of temperature on. Plants -- Assimilation.
49	The influence of straw residues and acidulating agents on the uptake by plants of native soil calcium and added strontium Matsuda, Kaoru, 1931- January 1958 (has links) No description available. Straw as fertilizer. Plants -- Effect of acids on. Plant-soil relationships.
50	The uptake of soluble tagged calcium and strontium by plants as influenced by time of contact between the soil and the added elements Braswell, Paul, 1922- January 1956 (has links) No description available. Plant-soil relationships. Strontium -- Absorption and adsorption. Calcium -- Absorption and adsorption.

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